THE PRICE of Euro Disney is about to fall. On 2 or 16 September, or 21 October, Leger Travel (0709 839839) has coach departures from 250 pick-up points in England and Wales. Adults pay pounds 149 and children under 12 pounds 49 for a three-night stay at the Hotel Santa Fe, a one-day pass for Euro Disney and a full-day excursion to Paris.